Envelop.



N0. 657,0l8. Patented Aug. 28, I900.

H. TRENCHARD, .IR.

E N V E L O P.

(Application filed June 28, 1 900.

[No Model.)

IN VE N T 0/? fife very fi'erzziaivgzii':

W/TA /ESSES m: Nonms versus cov FNOYO-UTNOH WASNINGYON, u. c.

UNITED STATES PATENT OFFICE.

HENRY TRENCIIARD, JR, OF NElV YORK, N. Y.

ENVELO P.

SPECIFICATION forming part of Letters Patent No. 657,018, dated August 28, 1900.

Application filed June 28, 1900.

To all whom it may concern.-

Be it known that I, HENRY TRENCHARD, Jr., a citizen of the United States, and a residentof the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved Envelop, of which the following is a full, clear, and exact description.

This invention relates to improvements in that class of envelops known or designated as tension-envelops, in which a cord fastening device is secured to the back of the envelop by means of a tubular rivet. As ordinarily arranged the tubular rivet passes into the interior of the envelop and permitsthe entrance of dust and dirt that might soil the contents of the envelop, and, further, the exposed inner end of the rivetis apt to scratch or otherwise damage the contents.

The object of my present invention is to obviate the above difficult-ies by employing a cap-piece in connection with an inner washer to cover the inner end of the the rivet.

I will describe an envelop embodying my invention and then point out the novel features in the appended claim.

Reference is to be had to the accompanying drawings, forminga part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure l is a perspective view of an envelop with a portion of the front broken away to show the covered part. Fig. 2 is a longitudinal sectional view, and Fig. 3 shows the combined washer and cap.

Referring to the drawings, 1 designates a tension-envelop, to the flap 2 of which the fastening-cord 3 is attached in the usual manner. Attached to the back of the envelop and around which the fastening-cord is designed to be wound is a disk 4, of paper or other suitable material. This disk 4 is socured to the envelop by means of a tubular rivet 5, the outer end flange of which engages Serial No. 21,879. (No model.)

upon the disk, and arranged between the up- The cap 8 is passed through the envelop back and through 5 5 the washers 7, and then its end is upset or flanged in the usual manner. The cap 8 is then to be turned over upon the washer and fastened thereto by the adhesive. As shown in Fig. 2, this cap then covers the inner end of the rivet and also extends overv the opening, thus preventing damage from the inner end of said rivet and also preventing the entrance of dust and dirt to the interior of the envelop. As the washer and cap are made of one piece of material,it is obvious that but one operation is required to cut or stamp them out.

Having thus described my invention, I claim as new and desire to secure by Letters Patent-- 7 In an envelop, a fastening device comprising a disk, a tubular rivet passing through said disk and through one side of the envelop, a Washer surrounding the inner end of said rivet, and a cap formed integral with the Washer, by a narrow neck portion and adapted to extend over the inner end of the rivet and to be secured to the washer, the said washer and cap being both of the same shape and size, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HENRY TRENCHARD, .I R.

Witnesses:

J NO. M. BITTER, C. R. FERGUSON. 

